Finding the Fourth Proportional to 394,660.92, 591,853.68 and 128,371.80
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Solution
The fourth proportional to 394,660.92, 591,853.68 and 128,371.80 is: 192,512.91
Step by Step Solution
- Step 1: Write the proportion equation
394,660.92 : 591,853.68 = 128,371.80 : x - Step 2: Convert to fraction form
394,660.92/591,853.68 = 128,371.80/x - Step 3: Cross multiply
394,660.92x = 591,853.68 × 128,371.80 - Step 4: Simplify right side
394,660.92x = 75,977,322,238.22 - Step 5: Solve for x
x = 75,977,322,238.22/394,660.92 - Step 6: Final answer
x = 192,512.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.